Add tests from the old svn tree

We're losing the svn history (which we could probably keep if we tried
hard enough) but don't consider that worthwhile.

Note these tests are destructive, so run them only in a throwaway
environment like a chroot, container, or vm.

The tests/run.all script should be the one which launches all the tests.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

tests/cptools/06_cppw_no_file/cppw.test

@@ -0,0 +1,54 @@
+#!/bin/sh
+
+set -e
+
+cd $(dirname $0)
+
+. ../../common/config.sh
+. ../../common/log.sh
+
+log_start "$0" "cppw reports an error if no files are provided"
+
+save_config
+
+# restore the files on exit
+trap 'log_status "$0" "FAILURE"; restore_config' 0
+
+change_config
+
+echo -n "Use cppw with a nonexistant file (cppw data/passwd)..."
+cppw data/passwd 2>tmp/usage.out && exit 1 || {
+	status=$?
+}
+echo "OK"
+
+echo -n "Check returned status ($status)..."
+test "$status" = "1"
+echo "OK"
+
+echo "cppw reported:"
+echo "======================================================================="
+cat tmp/usage.out
+echo "======================================================================="
+echo -n "Check the usage message..."
+diff -au data/usage.out tmp/usage.out
+echo "usage message OK."
+rm -f tmp/usage.out
+
+echo -n "Check the passwd file..."
+../../common/compare_file.pl config/etc/passwd /etc/passwd
+echo "OK"
+echo -n "Check the group file..."
+../../common/compare_file.pl config/etc/group /etc/group
+echo "OK"
+echo -n "Check the shadow file..."
+../../common/compare_file.pl config/etc/shadow /etc/shadow
+echo "OK"
+echo -n "Check the gshadow file..."
+../../common/compare_file.pl config/etc/gshadow /etc/gshadow
+echo "OK"
+
+log_status "$0" "SUCCESS"
+restore_config
+trap '' 0
+

tests/cptools/06_cppw_no_file/data/usage.out

@@ -0,0 +1,2 @@
+cppw: data/passwd: No such file or directory
+cppw: /etc/passwd is unchanged